{"id":2081,"url":"https://patchwork.libcamera.org/api/patches/2081/?format=json","web_url":"https://patchwork.libcamera.org/patch/2081/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20191003152037.74617-6-jacopo@jmondi.org>","date":"2019-10-03T15:20:37","name":"[libcamera-devel,5/5] ipa: vimc: Add support for test back channel","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"6d3ef4a9fe5164d562a06b098b5e887f63eb6589","submitter":{"id":3,"url":"https://patchwork.libcamera.org/api/people/3/?format=json","name":"Jacopo Mondi","email":"jacopo@jmondi.org"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/2081/mbox/","series":[{"id":515,"url":"https://patchwork.libcamera.org/api/series/515/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=515","date":"2019-10-03T15:20:32","name":"test: Add IPA interface test support","version":1,"mbox":"https://patchwork.libcamera.org/series/515/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/2081/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/2081/checks/","tags":{},"headers":{"Return-Path":"<jacopo@jmondi.org>","Received":["from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net\n\t[217.70.183.198])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id C197561915\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu,  3 Oct 2019 17:19:06 +0200 (CEST)","from uno.lan (2-224-242-101.ip172.fastwebnet.it [2.224.242.101])\n\t(Authenticated sender: jacopo@jmondi.org)\n\tby relay6-d.mail.gandi.net (Postfix) with ESMTPSA id 5C52AC0004;\n\tThu,  3 Oct 2019 15:19:06 +0000 (UTC)"],"X-Originating-IP":"2.224.242.101","From":"Jacopo Mondi <jacopo@jmondi.org>","To":"libcamera-devel@lists.libcamera.org","Date":"Thu,  3 Oct 2019 17:20:37 +0200","Message-Id":"<20191003152037.74617-6-jacopo@jmondi.org>","X-Mailer":"git-send-email 2.23.0","In-Reply-To":"<20191003152037.74617-1-jacopo@jmondi.org>","References":"<20191003152037.74617-1-jacopo@jmondi.org>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Subject":"[libcamera-devel] [PATCH 5/5] ipa: vimc: Add support for test back\n\tchannel","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"<libcamera-devel.lists.libcamera.org>","List-Unsubscribe":"<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>","List-Archive":"<https://lists.libcamera.org/pipermail/libcamera-devel/>","List-Post":"<mailto:libcamera-devel@lists.libcamera.org>","List-Help":"<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>","List-Subscribe":"<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>","X-List-Received-Date":"Thu, 03 Oct 2019 15:19:07 -0000"},"content":"Add support to the dummy VIMC IPA for communication with the IPA\ninterface test unit.\n\nUse the test channel, if available, to send a confirmation code when\nthe init() operation is called.\n\nSigned-off-by: Jacopo Mondi <jacopo@jmondi.org>\n---\n src/ipa/ipa_vimc.cpp | 54 ++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 54 insertions(+)","diff":"diff --git a/src/ipa/ipa_vimc.cpp b/src/ipa/ipa_vimc.cpp\nindex abc06e7f5fd5..781f5796b082 100644\n--- a/src/ipa/ipa_vimc.cpp\n+++ b/src/ipa/ipa_vimc.cpp\n@@ -7,20 +7,74 @@\n \n #include <iostream>\n \n+#include <fcntl.h>\n+#include <string.h>\n+#include <sys/stat.h>\n+#include <unistd.h>\n+\n #include <ipa/ipa_interface.h>\n #include <ipa/ipa_module_info.h>\n \n namespace libcamera {\n \n+/* Keep these in sync with the IPA Interface test unit. */\n+static const char *vimcFifoPath = \"/tmp/vimc_ipa_fifo\";\n+#define IPA_INIT_CODE 0x01\n+\n class IPAVimc : public IPAInterface\n {\n public:\n+\tIPAVimc();\n+\t~IPAVimc();\n+\n \tint init();\n+\n+private:\n+\tunsigned int fd_;\n };\n \n+IPAVimc::IPAVimc()\n+\t: fd_(0)\n+{\n+\t/* Set up the test unit back-channel, if available. */\n+\tstruct stat fifoStat;\n+\tint ret = stat(vimcFifoPath, &fifoStat);\n+\tif (ret)\n+\t\treturn;\n+\n+\tret = ::open(vimcFifoPath, O_WRONLY);\n+\tif (ret < 0) {\n+\t\tstd::cerr << \"Failed to open vimc IPA test fifo at: \"\n+\t\t\t  << vimcFifoPath << \": \" << strerror(errno)\n+\t\t\t  << std::endl;\n+\t\treturn;\n+\t}\n+\tfd_ = ret;\n+}\n+\n+IPAVimc::~IPAVimc()\n+{\n+\tif (fd_)\n+\t\t::close(fd_);\n+}\n+\n int IPAVimc::init()\n {\n \tstd::cout << \"initializing vimc IPA!\" << std::endl;\n+\n+\tif (!fd_)\n+\t\treturn 0;\n+\n+\tint8_t data = IPA_INIT_CODE;\n+\tint ret = ::write(fd_, &data, 1);\n+\tif (ret < 0) {\n+\t\tret = -errno;\n+\t\tstd::cerr << \"Failed to write to vimc IPA test fifo at: \"\n+\t\t\t  << vimcFifoPath << \": \" << strerror(-ret)\n+\t\t\t  << std::endl;\n+\t\treturn ret;\n+\t}\n+\n \treturn 0;\n }\n \n","prefixes":["libcamera-devel","5/5"]}